erickamurillo9929
18.07.2019 •
Mathematics
Find the probability that 4 students chosen at random are all born on a wednesday. a) 1/28 b) 1/2401 c) 4/2401 d) 1/254
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Ответ:
The probability any individual is born on a Wednesday is 1/7.
There are four of these individuals, so we multiply out the fraction four times
(1/7)*(1/7)*(1/7)*(1/7) = (1/7)^4 = (1^4)/(7^4) = 1/2401
Ответ:
mary would need to weigh 144 pounds, jose would need to weigh 198 pounds.